32221074456 has 128 divisors (see below), whose sum is σ = 94514688000. Its totient is φ = 10142568576.

The previous prime is 32221074367. The next prime is 32221074481. The reversal of 32221074456 is 65447012223.

32221074456 is a `hidden beast` number, since 322 + 210 + 74 + 4 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 32221074456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288585 + ... + 1313351.

It is an arithmetic number, because the mean of its divisors is an integer number (738396000).

Almost surely, 2^32221074456 is an apocalyptic number.

32221074456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32221074456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47257344000).

32221074456 is an abundant number, since it is smaller than the sum of its proper divisors (62293613544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32221074456 is a wasteful number, since it uses less digits than its factorization.

32221074456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25118 (or 25108 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 32221074456 its reverse (65447012223), we get a palindrome (97668086679).

The spelling of 32221074456 in words is "thirty-two billion, two hundred twenty-one million, seventy-four thousand, four hundred fifty-six".